Is approximately normally distributed with a mean of 2.2 days and a standard deviation of 0.4 days. What is the probability that lice that have fallen on bedding will die within 1.0 day? Round to four decimal places.

Is approximately normally distributed with a mean of 2.2 days and a standard deviation of 0.4 days. What is the probability that lice that have fallen on bedding will die within 1.0 day? Round to four decimal places.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

100%

Lice are a pesky problem for school aged children and is unrelated to cleanliness. The lifetimes of
lice that have fallen off the scalp onto bedding is approximately normally distributed with a mean of
2.2 days and a standard deviation of 0.4 days. What is the probability that lice that have fallen on
bedding will die within 1.0 day? Round to four decimal places.

The mean length of stay for patients undergoing a certain surgical procedure is 4 days with a
standard deviation of 3.5 days. We select a sample of 100 patients. What is the probability their
mean length of stay is less than 3 days? Round to four decimal places.

Expert Solution

Step 1

“Since you have asked multiple questions, we will solve the first question for you. If you want any specific question to be solved, then please specify the question number or post only that question.”

Let X be the random variable that the lifetime of lice has fallen off the scalp onto bedding.

Given that,

$X ~ N (μ = 2.2, σ = 0.4)$

To find the following probability.

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